ORGANIZATION AND BASIS OF PRESENTATION - Schedule of Premier LP's Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Variable Interest Entity [Line Items]
Operating activities	$ 444,234	$ 407,402	$ 349,524
Investing activities	(139,440)	(174,568)	(222,322)
Financing activities	(347,789)	(202,997)	(168,953)
Net (decrease) increase in cash and cash equivalents	(42,998)	29,837	(41,751)
Cash and cash equivalents at beginning of year	129,141	99,304	141,055
Cash and cash equivalents at end of period	$ 86,143	129,141	99,304
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Operating activities			339,894
Investing activities			(222,322)
Financing activities			(159,948)
Net (decrease) increase in cash and cash equivalents			(42,376)
Cash and cash equivalents at beginning of year		$ 88,834	131,210
Cash and cash equivalents at end of period			$ 88,834

Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including, but not limited to, disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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